1 files changed, 39 insertions, 0 deletions
diff --git a/widget/gtk/CompositorWidgetChild.h b/widget/gtk/CompositorWidgetChild.h
new file mode 100644
index 0000000000..76adc95baf
--- /dev/null
+++ b/widget/gtk/CompositorWidgetChild.h
@@ -0,0 +1,39 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef widget_gtk_CompositorWidgetChild_h
+#define widget_gtk_CompositorWidgetChild_h
+
+#include "GtkCompositorWidget.h"
+#include "mozilla/widget/PCompositorWidgetChild.h"
+#include "mozilla/widget/CompositorWidgetVsyncObserver.h"
+
+namespace mozilla {
+namespace widget {
+
+class CompositorWidgetChild final : public PCompositorWidgetChild,
+                                    public PlatformCompositorWidgetDelegate {
+ public:
+  CompositorWidgetChild(RefPtr<CompositorVsyncDispatcher> aVsyncDispatcher,
+                        RefPtr<CompositorWidgetVsyncObserver> aVsyncObserver,
+                        const CompositorWidgetInitData&);
+  ~CompositorWidgetChild() override;
+
+  bool Initialize();
+
+  mozilla::ipc::IPCResult RecvObserveVsync() override;
+  mozilla::ipc::IPCResult RecvUnobserveVsync() override;
+
+  void NotifyClientSizeChanged(const LayoutDeviceIntSize& aClientSize) override;
+
+ private:
+  RefPtr<CompositorVsyncDispatcher> mVsyncDispatcher;
+  RefPtr<CompositorWidgetVsyncObserver> mVsyncObserver;
+};
+
+}  // namespace widget
+}  // namespace mozilla
+
+#endif  // widget_gtk_CompositorWidgetChild_h